Metallic-coated neutral density (ND) filters obtain their optical density from a metal alloy coating on a substrate determined by the wavelength region of interest. Unlike the all-dielectric or absorption type, the metallic type ND filter employs a combination of absorption and reflection to reduce the intensity of light. While able to withstand more incident energy than the absorptive type, metallic ND filters are suitable only for low-power applications. (Note: If used in series, these filters should be tilted to avoid multiple reflections and any reduction of density).

Features

Provides attenuation with greater linearity over a wide spectral range

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LOT-QuantumDesign S.A.R.L.

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We are a leading European distributor of high-quality scientific instruments and components. We offer components and systems used in materials science, imaging, spectroscopy, photonics, nanotechnology and life science research. We were founded over 45 years ago and employ more than 140 dedicated staff across Europe.